Some facts about crime committed by immigrants can be found in this New York Times article from January 26, 2017, by Richard Pérez-Peña.

For those without subscription access:“A central point of an executive order President Trump signed on Wednesday — and a mainstay of his campaign speeches — is the view that undocumented immigrants pose a threat to public safety.“But several studies, over many years, have concluded that immigrants are less likely to commit crimes than people born in the United States. And experts say the available evidence does not support the idea that undocumented immigrants commit a disproportionate share of crime.”https://www.nytimes.com/2017/01/26/us/trump-illegal-immigrants-crime.html?partner=rss&emc=rss&smid=tw-nytpolitics&smtyp=cur